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Auteur The Center for Clinical Epidemiology and Biostatistics. Department of Biostatistics and Epidemiology. University of Pennsylvania School of Medicine. Philadelphia. PA. USA |
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Article
Courtney-A SCHREIBER ; Kurt-T BARNHART ; HILLIER (Sharon-L) : USA. Department of Obstetrics. Gynecology and Reproductive Sciences. University of Pittsburgh School of Medicine. Pittsburgh. PA. ; Mary SAMMEL ; Department of Obstetrics and Gynecology. University of Pennsylvania School of Medicine. Philadelphia. PA. USA ; The Center for Clinical Epidemiology and Biostatistics. Department of Biostatistics and Epidemiology. University of Pennsylvania School of Medicine. Philadelphia. PA. USA |[BDSP. Notice produite par INIST-CNRS Fj9R0xsH. Diffusion soumise à autorisation]. The prevalence of unplanned pregnancies contributes to the methodological challenges of human immunodeficiency virus (HIV) prevention trials. In this paper, the a[...]